Earlier this week, the Canadian Green Party was caught in a Photoshop gaff that toes the line between silly and troubling. As reported by the National Post it seems a photograph of the party’s leader, Elizabeth May, was Photoshopped to add a green party logo and a reusable straw, putting it more in line with the party’s environmental policies. Nobody seems to know when, how, or why this edit was made, but a party spokesperson did admit that Photoshop was…